Scott Doak, the Integration and Development Director of Lamprell, the FTSE 250 oil and gas engineering firm, has once again diminished his stake in the firm, this time selling 200,000 shares. The sale, which follows his decision to drop 21,679 the previous week, was made in the same week the company secured a $227m contract from an unnamed drilling contractor to build one of its popular jack-up rigs, in which the group specialises. The news follows another deal Lamprell struck at the end of April that will see it build two further rigs for Abu Dhabi's National Drilling Company. The company already has four of the jack-up rigs under construction for the Middle Eastern company. Doak, 50, who has been on the Lamprell team for five years, earned himself 363.693p for each of the shares, totalling £727,396. The sale reduced his stake in the company to 276,248 shares, or 0.106%. Top Director BuysGlobal Petroleum Ltd. (GBP) Director name: Mr Peter TaylorAmount purchased: 142,740 @ 15.80p Value: £22,553Healthcare Locums (HLO) Director name: Mr Stephen BurkeAmount purchased: 824,087 @ 2.40p Value: £19,778Healthcare Locums (HLO) Director name: Mr Mark AndrewsAmount purchased: 618,055 @ 2.40p Value: £14,833Global Energy Development (GED) Director name: Mr Mikel D FaulknerAmount purchased: 10,000 @ 102.00p Value: £10,200Top Director SellsDerwent London (DLN) Director name: Mr John David BurnsAmount sold: 32,567 @ 1,757.00p Value: £572,202Derwent London (DLN) Director name: Mr Simon P SilverAmount sold: 28,634 @ 1,757.00p Value: £503,099Derwent London (DLN) Director name: Mr Paul M. WilliamsAmount sold: 27,250 @ 1,757.00p Value: £478,782Derwent London (DLN) Director name: Mr David SilvermanAmount sold: 26,414 @ 1,757.00p Value: £464,094Derwent London (DLN) Director name: Mr Nigel Q GeorgeAmount sold: 14,206 @ 1,757.00p Value: £249,599